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-# PairGoth model
-
-## Entity Relationship Diagram
-
-```mermaid
-erDiagram
-
-  %% entities
-
-  Tournament {
-    string name
-    string shortName
-    date startDate
-    date endDate
-    string country
-    string location
-    boolean isOnline
-  }
-
-  Round {
-    int number
-  }
-
-  Game {
-    string result
-  }
-
-  Player {
-    string lastname
-    string firstname
-    string country
-    string club
-  }
-
-  Ladder {
-    string name
-    date lastUpdated
-  }
-  
-  %% relationships
-
-  Tournament ||--|{ Round: ""
-  Round }o--|{ Player: "participate"
-  Round ||--|{ Game: ""
-  Game ||--|| Player: "black"
-  Game ||--|| Player: "white"
-  Player }o--o{ Ladder: "rating"
-  
-```
-